大化水电站扩建工程建设征地移民安置规划设计

大化水电站扩建工程没有改变原电站正常蓄水位和运行方式,不扩大水库淹没影响处理范围,不存在新的移民安置问题。文章就大化水电站扩建工程建设地移民安置规划设计进行分析,得出几点体会供参考。     

Sustainable crop production intensification in the Senegal and Niger River basins of francophone West Africa

This paper reports on how the farmer field school (FFS) approach has been used to successfully catalyse important changes among stakeholders in the savannah zones of West Africa. Improved agronomic practices, better decision-making skills and diversification of smallholder farms in developing countries are shown to provide farmers the opportunity to rebuild soil fertility, optimize input use and introduce new sources of food and nutrition and marketable products for local populations. This is a knowledge-intensive endeavour best addressed through community-based processes of education. By the end of 2010, approximately 116,000 rice, vegetable, cotton and other farmers would have been involved in season-long FFS in four West African countries, resulting in improved yields and incomes and ushering substantial progress in both reducing the use of chemical pesticides and improving the use of fertilizers and organic amendments. The programme is increasingly being successfully integrated into local, provincial and national structures. Experienced personnel are being employed to initiate similar programmes in nearby countries. The evolving network of experienced actors and committed countries provides a platform for collaboration by a growing set of partners and represents a large-scale, long-term programmatic approach to helping sustainably intensify and develop agriculture in Africa.     

Dial “A” for agriculture: a review of information and communication technologies for agricultural extension in developing countries

Agriculture can serve as an important engine for economic growth in developing countries, yet yields in these countries have lagged far behind those in developed countries for decades. One potential mechanism for increasing yields is the use of improved agricultural technologies, such as fertilizers, seeds, and cropping techniques. Public sector programs have attempted to overcome information‐related barriers to technological adoption by providing agricultural extension services. While such programs have been widely criticized for their limited scale, sustainability, and impact, the rapid spread of mobile phone coverage in developing countries provides a unique opportunity to facilitate technological adoption via information and communication technology (ICT)‐based extension programs. This article outlines the potential mechanisms through which ICT could facilitate agricultural adoption and the provision of extension services in developing countries. It then reviews existing programs using ICT for agriculture, categorized by the mechanism (voice, text, internet, and mobile money transfers) and the type of services provided. Finally, we identify potential constraints to such programs in terms of design and implementation, and conclude with some recommendations for implementing field‐based research on the impact of these programs on farmers’ knowledge, technological adoption, and welfare.     

CONSISTENT MARKET EXTENSIONS UNDER THE BENCHMARK APPROACH

The existence of the growth optimal portfolio (GOP), also known as the Kelly portfolio, is vital for a financial market to be meaningful. The GOP, if it exists, is uniquely determined by the market parameters of the primary security accounts. However, markets may develop and new security accounts become tradable. What happens to the GOP if the original market is extended? In this paper we provide a complete characterization of market extensions which are consistent with the existence of a GOP. We show that a three fund separation theorem applies for the extended GOP. This includes, in particular, the introduction of a locally risk free security, the savings account. We give necessary and sufficient conditions for a consistent exogenous specification of the prevailing short rates.     

Determining Customer Satisfaction From Mobile Phones: A Neural Network Approach

Abstract

This research examines the effects of extension mode (online to online vs. online to offline), web-brand concept (function oriented vs. experience oriented) and extension similarity (high vs. low) on consumer web-brand extension evaluations, attitude, perceived quality, and purchase intention of the extension brands. The analysis reveals two significant interaction effects: (1) the positive effect of brand extension similarity on consumer evaluations is stronger when the parent brand is function oriented compared to the experience-orientated ones; (2) the positive effect of brand extension similarity on consumer evaluations is more pronounced when the web-brands extend to offline markets rather than to online markets. Implications for marketing theory and practice are discussed.     

第三方物流企业绩效评价方法研究

通过对比分析7种第三方物流企业绩效评价的方法,验证了可拓工程评价法的合理性和有效性,得出基于可拓工程分析法既能用于第三方物流企业间的横向比较,又能用于企业自身的纵向比较。此方法最适合用于第三方物流企业绩效评价,应用此方法评价第三方物流企业的经营绩效,可以得出更为全面、客观、公正的评价结果,进而使企业的经营绩效得到改善和提高。     

跨越物质层面:经济含义的扩展

财富,最初被认为是一个可以与"物质资料"等同的概念,但仅仅在物质层面上理解财富,是有其局限的.财富既有物质层面的含义,也有非物质层面的含义;它既是一种对象,也是一种社会关系,并以权力、制度的形式确定下来,在一定的文化体系中获得意义.与此相对应,经济概念也跨越了原来的物质资料层面,人的社会地位、知识、符号、意义等,都被赋予了经济的意义.这预示着经济学领域发生重大转变的可能性,也意味着经济学领域中多学科的联盟在所难免.     

消费者品牌延伸评价中的"拥有者效应"

A two levels of product similarity times two levels of brand image consistency times three levels of ownerships factorial experiment was designed to explore the ownership effects when consumers evaluate brand extensions and judge parent brand after receiving brand extension information. Evidence shows that ownership effects do exist in both extension and parent brand evaluations. Brand image consistency is the most influential factor for parent brand owners while product similarity is more important factor for non-users in attitude formation towards the extension. The owners of competitive brands favor low image consistency extension more than high image consistency extension. Furthermore, there is an interaction effect between brand image consistency and product similarity for brand owners, whereas this effect is non-existent for non-owners and non-users. This again shows that brand owners care much more about brand image consistency than other consumer groups do. In evaluating a parent brand, owners and non-owners differ. The authors draw the conclusion that consumers’ brand extension evaluation is more like a “benefit oriented” process rather than a “pure affect transfer” process.     

Lead-farmer extension and smallholder valuation of new agricultural technologies in Tanzania

Encouraging the widespread adoption and use of new on-farm technologies is an important part of productivity-led strategies to promote agricultural transformation. While many interventions have been designed to promote adoption through extension and education, little is known about how these efforts influence farmer willingness-to-pay (WTP) for new technologies. We use a Becker-DeGroot-Marschak (BDM) mechanism to elicit farmer WTP for two improved seed varieties and a new seed treatment product, Apron Star, under two different lead-farmer extension treatments in Tanzania: (i) a demonstration plot showcasing the technologies within a village; and (ii) a demonstration plot coupled with distribution of trial packs enabling some farmers to test the technologies on their own land. In the BDM, farmers were presented with six products – the two bean varieties: without Apron Star, with Apron Star already applied, and with a sachet of Apron Star for the farmer to treat the seed him/herself. Our results suggest that neither extension treatment significantly affects WTP for these technologies. However, we find that farmers are willing to pay more for seed that is pre-treated with Apron Star than for seed bundled with a sachet of Apron Star for self-treatment.